Deep-well pump



13 1927' J. D. LANGDON DEEP WELL PUMP Filed A1121. 4, 17.926

F/f. E.

ff/4M f VCUUM PUMP Patented Sept. 13, 1927.

UNITED STATES PATENT OFFICE.

JESSE D. LANGDON,` OF LOS `ANGELES, CALIFORNIA, ASSIGNOR TO PETROLEUM MA.;

p CHINERY DEVELOPMENT CORPRATIT, OF RENO, NEVADA.

:DEEP-WELL PUMP.

Application lezl .August .4, 1926. Serial No. 127,099.

` The present invention relates to deep well pumps, and aims to providenovel and improved means for pumping oil, water or other liquid from a deep well in a practical and etlicient manner.

Another" object ot' the :invention is the provision of a device ot the `clau-acier indicated having liquid outlet pipe extendingl down into the well casing and means for alternatcly creating pressures within the casingr below and above atmospheric pressure, in order to alternately litt the liquid into the casing and force same trom the casing p through said pipe. A further object of the invention is the utilization of steam to create pressure within the well casing' 'tor torcingthe liquid therefrom, and the withdrawal ot the steam from the casing tor liftingthe .liquid into 2U the casingr under a partial vacuum, and to enable the steam to be condensed and the water ot' condensation returned to the steam boiler', for purpose oi' economy, it desired.

A still further object is the provision of novel means for automatically controlling the flow of steam or other pressure fluid to the wel] casing and vacuum pump, so that when there is no further flow of liquid trein the well under fluid pressure within the well 3U casing, the pressure fluid shut otl from the Well casing and the vacuum pump 'then operated by the steam or pressure fluid to create. a partial vacuum in the casing 'for raising` the liquid therein.

W'ith the foregoingI and other objects in View, which will be apparent as the description proceeds, the invention resides in the construction and arrangement ol parts, as hereinafter.' described and claimed, it being;- understood that changes canbe made within the scope of what is claimed, without departing troni the spirit oli lthe invention.

The invention is illustrated in `the accompanying,r drawing, wherein- Figure 1 is a vertical section ol one 'l'orm -of` apparatus, portions being broken away and portions shown iu elevation.

Fig. 2 is a similar view illustrating,` a

modification. y

In carrying out the invention a tubular casing 7, which may be composed of pipe sections as usual, extends down into the Well to the stratum containing` the oil, water or other liquid, and said easing has a partition 8 therein near its upper end pro- 55 vidinpa discharge chamber 9 above said partition. A liquid outlet pipe 10 extends down into the well within the casing 7to` a point near the lower end of the casing, and projects upwardly through the partition 8 60 into the chamber 9. The pipe 10 has a valve seat11 at its upper end on which a ball valve 13 is seatable, to provide a check valve permitting the upward iiow oi liquid through the pipe 10 into the chamber 9 but prevent- 65 ing,- the downward flow of liquid. The valve seat 11 has a cage 13 over the valve 12. The chamber 9 is provided at one side between the top and bottom thereoi With a liquid outlet 11i :trom which a pipe 15 extends to a 70 storage tank.

A vacuum pipe 1G is connected to the partition t5 to communicate with the upper end o'l' the well, and is extended through the wall ot the chamber 9, as shown.

.A steam or pressure fluid chamber 17 is provided above the chamber 9, and a supply pipe 18 is connected to the chamber 17. It is preferable to use steam supplied by a suitable steam boiler, `although compressed air or other pressure fluid may be used. A pipe 19 extends through the chamber 9 is connected to the partition 8 and the partition between the chambers 9 and 17, for establishing," communication between the pressure B5 fluid chamber 17 and the well. A steam or pressure fluid pipe 2() is connected to the chamber 17 and leads to a` steam or pressure luid ena-ine operating a vacuum pump 33 to which the pipe 16 extends, so that the au pump is operated by the steam or pressure iluid flowing` through the pipe 2() for pumping; the steam or liuid through the pipe 16 from the well.

The chamber 17 has valve seats 21 and 22 D5 at the adjacent ends of the pipes 19 and 9.0, against which valves 23 and 24; are seatable alternately, said `valves having` a common stem connecting them. A lever 25 is pivoted on a rock shaft 26 within the chamber 17 and extends between the valve Q4 and a collar 2T threaded on the stem of the valves 23, 24; for alternately seating' said valves. A rod 9.8 is pivoted to said lever and passes slidably through the partition between the chambers 9 and 17 and is connected to a float 29 movable in the chamber 9 above the outlet 14. Thus, the valves Q1 are `float-controlled.

leo

'closing the valve s3.

In order to protect the control of the valves 23, 24, a baille plate 30 is disposed within the chamber 9 at a level immediately above the outlet 14, with a slight clearance between the edges of the plate and wall of the chamber 9 so that the liquid may be lorced upwardly in said chamber above said plate, as illustrated in the drawing. The plate 30, as shown, is supported trom the partition 8 on posts 31.

A handle or lever 32, as shown, is secured on the rock shaft 26 on the exterior of the chamber 17 for manually or otherwise moving` the valves 23, 24.

In operation, supposing the liquid to be lifted into the casing 7, as shown, and the handle or lever 32 to be operated manually or otherwise tol raise the valve 24 against its seat 22 and unseat the valve 23, the steam will liow itrom the chamber 17 through the pipe 19 into the well, thereby creating pressure in the well and forcing the liquid therein downwardly in the casing 7 and upwardly through the pipe intothe chamber 9. The liquid tiowin g into the chamber 9 laster than it passes from said chamber through the pipe 15, will result in the level of the liquid in the chamber 9 rising above the bai'ile plate 30, as shown, thereby supporting the float 29 and keeping the valve 24, closed and the valve 23 open. The liquid in the well is thus forced therefrom under pressure, and when the flow ot liquid from the well through the pipe 10 is stopped, the level of' theliquid in the chamber 9 will move down, inasmuch as the liquid in the chamber 9 above the baille plate will drain down through the outlet 14. The baille plate 3() also prevents the steam which may flow upwardly through the pipev 10 trom impinging` against the float 29 and holdingsame inl raised position. Consequently, when the discharge of the liquid is stopped, such as when the level ot the liquid in the casing 7 reaches the lower end of the pipe 10, the float 29 will move downwardly, and the weight thereof will swing the lever 25 downwardly, thereby opening the valve 24 and This will shut off the steam from the well, and the steam will now flow from the chamber 17 through the pipe 20 to the vacuum pump 33, thereby automatically starting the pump, so that the steam within the casing 7 is pumped through the pipe 16. This will create a partial vacuum in the easingv7 to lit'tr the iquid therein, the check valve 12 preventing the liquidrin he pipe 10 from moving downwardly. The steam which is pumped from the well casing may be condensed and the water ot condensation returned toy the boiler, as a conservation measure. rlhere is no appreciable condensation of the steam within theA well casing, owing to the tact that there is littleor no loss otheat units within the wellV After the liquid is thus pumped into the well casing, the valves 23, 24 are reversed tothe position illustrated, to again start the discharge or' the liquid from the well as hereinbaxfore described. This may be done by manually or otherwise operating the lever or handle 32 at intervals, or the lever may be moved by hand or otherwise to raise the valves 23, 24 aiter the vacuum pump 33 has been operated a predetern'iined length of time. Thus, aiter a predetermined number of revolutions ot a shat't ot the pump- 33 the lever may be moved to raise the valves es, el. y

ln the modification shown in Fig, 2, the well casing 7 has a head or cap 8', and the liquid discharge pipe 10 extends through said head. A pipe 34 depends from the head e" within the casing 7 to a point near the lower end thereof, and the lower portion thereof serves as cylinder for a piston 35 movable vertically within said pipe. The piston has'a piston plunger 36 ot' smaller diameter working within al cylinder crew-threaded on and depending from the lowe.I end et the pipe 10. A check valve 12 is provided within the lower end of the pipe 10 and a similar valve 39 is provided within the upper end portion of the piston plunger 36, permitting the upward' flow oi: liquid but preventing the downward flow thereof. The pipe has stops 40 at its lo ver end tolimit the downward movement of the piston 35 andthe plunger 38 has a passage or opening extendingV longitudinally therethrough to'establish communication be tween thel cylinder 37 and lower portion ot therpipe 34`-below the piston 35;

The steam or pressure fluid supply pipe 13 is connected to lthe head 8 in communication with the annular chamber 46 between the casing 7 and pipe`34', and another steam or pressure fluid supply pipe 41 is connected to the head 8 in communication with the chamber 47 between the pipes 10 and Similarly, vacuum pipes 1G and 43 leading to vacuum pump are connected to the head 3 in communication with the respective chambers 46 and 47. The pipes 18, 41, 43 and 16 have the respective valves 23', 42, 44 and 45 to be controlled by hand or otherwise.

In operation, with the valves 42 and 45 open and the valves 23 and 24 closed` steam is admitted into the chamber 47 while the steam in the chamber 46; is pumped therefrom through the pipe 16. As a result, the liquid is lifted into the rchamber 46 and, simultaneously, the piston 35 is moved downward'ly within the pipe 34 by the steam in the chamber 47. When the pist-on 35 is moved downwardly liquid will liow upwardly through the piston plunger 33 into the' cylinder 37, the valve 39 opening upwardly whi'le the valve l2 supports the liquid in mospheric pressure the pipelO.` Now, by closing the valves`42 and 45 and opening the valves 23 and 44, steam is admitted into the chamber 46 while the steam in the chamber 47 is drawn there- Y piston beiner below andY above atmospheric pressure. herefora the liquid in the cylinder 37 above the valve 39 is forced upwardl through the pipe 10 past the valve 12. 'ghe operation is then repeated as before, and whenthe valves 23 and 44 are closed and the valves 42 and 45 opened, the pressure on the piston 35 below and above same will be aboveand belowA atmospheric pressure. In this way, the piston 35 is moved both upwardly and downwardly pressures on opposite sides thereof below and above atworking in unison. With either form of apparatus, it will be noted that there is nosubstantial loss in heat units so that the use of steam will be efficient,

' and the use of a partialvacuum in withdrawing the steam from the well will also provide for efficiency. The steam may be condensed and the water.ofcondensation rem turned at almost the boiling point to the boiler so as to conserve fuel for heating the boiler.

Having thus described thev invention, what is claimed as new is l. A deep well pump comprising a deep well casing, a 'liquid outlet pipe within said casing, means for admitting steam into said casing for forcing liquid from the casing through said pipe, a steam operated pump for withdrawing the steam from the casing to lift liquid into the casing, and means for alternately supplying steam to the firstnamed means and pump.

2. A deep well pump comprising a Awell casing, a liquid outlet pipe therein, means for admitting pressure fluid into the casing to force liquid from the casing through the outlet pipe, a vacuum pump connected to thev casing to pump the fluid from the casing for 'lifting liquid into the casing, and automatic means operable, when the discharge of liquid through the outlet pipe ceases, for shutting oli the flow of pressure fluid` from the casing and starting said pump.

3. A deep well pump comprising a well casing, aliquid outlet pipe therein, means for admitting pressure fluid into the casing to force 'liquid from the casing through the outlet pipe, a` vacuum pump connected to the casing to pump the fluid from the casing forv lifting liquid into the casing and operated by fluid pressure, and automatic means operable, when the discharge of liquid through the outlet pipe ceases, for shutting olf the pressure fluid `fromthe casing and establishing the flow of pressure fluid to said pump for oj'ierating same.

4. A deep well pump comprising a w'e'll casing, a liquid outlet pipe therein, means for admitting pressure fluid into the casing to force the liquid from the casing through the outlet pipe, a pressure fluid operated vacuum pumpiconnected to the casing to pump the fiuid from the casing for lifting liquid into the casing, valve means for al` ternately shutting` oflA the flow of pressure fluid to the casingand pump, and automatic means controlling said valve means and operabe,when the discharge of liquid through the outlet pipe ceases, for operating` said va'lve means to shut off the flow of pressure fluid from the casing and establish the flow of pressure fluid to said pump.

5. A deep well pump comprising a well g, a discharge chamber having an outlet, a liquid outlet pipe within the casing and arranged to discharge liquid into said chamben means for admitting pressure fluid casinol into the` casing to force liquid from the c`a`sing through the outlet pipe into said cham ber, a vacuum pump connected tg thecasing to pump the fluid from the casing for lift ing liquid into the casing, a float in said chamber above the'level of said outlet to be held in raised position bythe liquid in said chamber when above the level of said outlet, and means controlled by said float'for shutting off the Vflow of pressure fluid from the casing and starting said pump when said float moves downwardly by the lowering of the level of the liquid in said chamber.

Adeep well comprising a well'casing, a liquid outletpipe therein, a chamber com-- municating with said pipe and arranged to hold liquid therein at an elevated level dur ing the forcing of liquid through said pipe, means for admitting pressure fluid into said casing to force the liquid from the casing through said outlet pipe, a vacuum pump connected to the casing to pump the fluid from the casing for lifting the liquid into the casing, a float in said chamber, and means controlled by said float whereby the float in moving downwardly will shut off' the pressure fluid from the casing and will start the pump.

7. A deep well pump comprising a well casing, a liquid outlet pipe therein, a cl1am ber communicating with said pipe and so arranged that the liquid level therein is raised when liquid is forced through said pipe from the casing, means for admitting pressure fluid into the casing to force liquid from the casing through the outlet pipe, a pressure fluid operated vacuum pump connected to the casing to pump the fluid from the casing for lifting liquid into the casing, valve means for alternately shutting olf the flow of pressure fluid from the casing and Eil!) llO pump, and a float in said chamber controlling said'valve means for' operating the valve means toV shut oil the pressure l'luidl from the casing and establish the llow ot pressure fluid to the pump when said float moves downwardly in said chamber.

8. A deep Well pump comprising a Well Casing, a dischargel chamber having an Outlet' between' the top and bottom thereof, ay

liquid outlet pipe within the casing extending upwardly into said chamber and having a check valve, means tor admitting pressure tl'uid into the casing to force liquid from the casing through the outlet pipe into said chamber, a ll'oat'in said chai'nbu' at a higher level' than said outlet', valve means controlled by said float or shutting oli' the How oi pressure fluid from the casing when said lloat moves' downwardly, a baille plate in said chamber above said pipe and below the float, and' means for' the discharge oi the pressure fluidv trom the cas-ing.

9. A deep Well pump comprising a well casing', a liquid outlet pipe leading' therefrom, a chamber communicating with said pipe to' receive the liquid therefrom and having an outlet so arranged that when the liquid flows into said chamber from said pipe it` rises to a level above said outlet and when pressure fluid enters said chamber from said pipe the liquid level in the chamber falls to said outlet, means for admitting pressurev hiid'intor the easing to loi-ce the liquid from the casing through the outlet pipe into said chamber, automatic means controlled by the liquid in the chamber above said outlet and operable for shutting olil the flower' pressure Huid into the casing wheny the liquidl level in said chamber alls to saidoutlet, and means tor the discharge el the' pressure lluid from the casing.

l0'. er deep well pump comprising a well casing, a liquid outlet pipe leadingtherefrom, a chamber communicating with safid pipe to receive the liquid therefrom and having an outlet so arranged that the liquid from the pipe rflows through the chamber to the outlet and that the liquid level in the chamber rises above said outlet during such' signature.

JESSE D. LANGDON. 

